Pipeline pump

Abstract

The utility model provides a pipeline pump and belongs to the technical field of water pumps. The problems that impurities are accumulated in an existing pipeline pump, and parts in the pipeline pump are seriously damaged are solved. The pipeline pump comprises a water pump body, a pump cover is arranged at the upper end of the water pump body, a driving motor is arranged on the pump cover, a motor shaft of the driving motor extends into the water pump body and is connected with a multi-stage impeller assembly, and the water pump body is provided with a water inlet channel for water inflow and a water outlet channel for water outflow. A fixing part is arranged between the pump cavity and the water inlet channel, a water passing hole used for water passing is formed in the fixing part, the multi-stage impeller assembly is composed of a fixing frame, a plurality of connecting frames and a plurality of impeller bodies, the connecting frames are fixedly arranged on the fixing frame, and the impeller bodies are arranged between every two adjacent connecting frames; and a motor shaft of the driving motor is sleeved with the rotating shaft. The utility model has the advantage of good stability.

Description

Technical Field

[0001] This utility model belongs to the field of water pump technology and relates to a pipeline pump. Background Technology

[0002] A pipeline pump is a type of single-suction, single-stage, or multi-stage centrifugal pump with a vertical structure. Because its inlet and outlet are on the same straight line and have the same diameter, it resembles a section of pipe and can be installed at any position in a pipeline, hence the name pipeline pump.

[0003] Existing pipeline pumps are connected to various pipelines. Sand, gravel and other particulate impurities suspended in the pipelines will enter the pipeline pump with the water flow. Under long-term operation, impurities accumulate inside the pipeline pump, and in severe cases, they can enter the motor cavity through the mechanical seal, causing serious wear and tear on the internal components of the pipeline pump, as well as motor wear and tear. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a pipeline pump with good stability and a multi-stage impeller.

[0005] The objective of this utility model can be achieved through the following technical solution: A pipeline pump includes a pump body, a pump cover is provided at the upper end of the pump body, a drive motor is provided on the pump cover, the motor shaft of the drive motor extends into the pump body and is connected to a multi-stage impeller assembly, characterized in that the pump body is provided with an inlet channel for water intake and an outlet channel for water output, the pump body has a pump chamber inside, a fixing part is provided between the pump chamber and the inlet channel, the fixing part is provided with a water passage hole for water passage, the multi-stage impeller assembly consists of a fixing frame, several connecting frames and several impeller bodies, several connecting frames are fixedly mounted on the fixing frame, the impeller bodies are disposed between two adjacent connecting frames and sleeved on the motor shaft of the drive motor, one end of the fixing frame extends into the water passage hole of the fixing part, and a filter assembly for filtration is fixedly mounted at the front end of the fixing frame.

[0006] In the aforementioned pipeline pump, a positioning rod is provided at the front end of the fixed frame, the filter assembly includes a filter ring and a filter screen, the filter ring has an opening for the positioning rod to pass through, the positioning rod is provided with a positioning component for positioning the filter ring, the positioning component consists of a positioning element and a return spring, the positioning rod has an installation groove for installing the positioning component, and the positioning element extends and retracts within the installation groove under the action of the return spring to fix the filter ring.

[0007] In the aforementioned pipeline pump, the inlet channel and the outlet channel are on the same horizontal line, and a water-blocking part is provided between the inlet channel and the outlet channel.

[0008] In one of the aforementioned pipeline pumps, the pump cover is fixedly installed on the pump body using fixing bolts.

[0009] Compared with existing technologies, this pipeline pump enhances the water delivery capacity by incorporating a multi-stage impeller inside, and a filter assembly at the front end of the mounting bracket filters the water entering the pump chamber, thus improving the service life of the pipeline pump. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a partial cross-sectional structural schematic diagram of the present invention.

[0012] In the diagram, 1. Pump body; 2. Pump cover; 3. Drive motor; 4. Multi-stage impeller assembly; 5. Inlet channel; 6. Outlet channel; 7. Fixing part; 8. Fixing frame; 9. Connecting frame; 10. Impeller body; 11. Filter assembly; 12. Positioning rod; 13. Filter ring; 14. Filter screen; 15. Positioning component; 16. Mounting groove; 17. Water baffle. Detailed Implementation

[0013] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0014] like Figure 1 , Figure 2 As shown, this pipeline pump includes a pump body 1, with a pump cover 2 at the upper end of the pump body 1. A drive motor 3 is mounted on the pump cover 2, and the motor shaft of the drive motor 3 extends into the pump body 1 and is connected to a multi-stage impeller assembly 4. The pump body 1 has an inlet channel 5 for water intake and an outlet channel 6 for water discharge. The pump body 1 has a pump chamber inside, and a fixing part 7 is provided between the pump chamber and the inlet channel 5. The fixing part 7 has a water passage hole for water to pass through. The multi-stage impeller assembly 4 consists of a fixing frame 8 and several connecting... The pump body 1 has a connecting frame 9 and several impeller bodies 10. The fixing frame 8 is provided with several connecting parts 1, and the pump body 1 is provided with corresponding connecting parts 2. The fixing frame 8 is fixed to the pump body 1 by fixing the connecting parts 1 and 2. Several connecting frames 9 are fixedly set on the fixing frame 8. The impeller body 10 is set between two adjacent connecting frames 9 and is sleeved on the motor shaft of the drive motor 3. One end of the fixing frame 8 extends into the water passage hole of the fixing part 7, and a filter assembly 11 for filtration is fixedly set at the front end of the fixing frame 8.

[0015] To elaborate further, when this utility model starts running, the rotation of the motor shaft drives several impeller bodies 10 in the multi-stage impeller assembly 4 to rotate. The liquid enters from the water inlet channel 5, is filtered by the filter assembly 11 on the fixed frame 8, and then enters the cavity of the connecting frame 9 in sequence. It then flows out from the connecting frame 9 at the upper end and enters the water outlet channel 6 for water discharge.

[0016] To further elaborate on the installation of the filter assembly 11, when installing the filter assembly 11 on the mounting bracket 8, first press the positioning member 15 to retract it into the mounting groove 16, then align the opening on the positioning ring with the positioning rod 12 and insert it onto the positioning rod 12. When the return spring returns, one end of the positioning member 15 extends out of the mounting groove 16 and fixes the filter ring 13.

[0017] To elaborate further, the front end of the fixing frame 8 is provided with a positioning rod 12. The filter assembly 11 includes a filter ring 13 and a filter screen 14. The filter ring 13 has an opening for the positioning rod 12 to pass through. The positioning rod 12 is provided with a positioning component for positioning the filter ring 13. The positioning component consists of a positioning element 15 and a return spring. The positioning rod 12 has an installation groove 16 for installing the positioning component. The positioning element 15 extends and retracts within the installation groove 16 under the action of the return spring, thereby fixing the filter ring 13.

[0018] To elaborate further, the water inlet channel 5 and the water outlet channel 6 are on the same horizontal line, and a water-blocking part 17 is provided between the water inlet channel 5 and the outlet channel.

[0019] To elaborate further, the pump cover 2 is fixedly installed on the pump body 1 by fixing bolts.

[0020] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0021] Although this document frequently uses terms such as pump body 1, pump cover 2, drive motor 3, multi-stage impeller assembly 4, inlet channel 5, outlet channel 6, fixing part 7, fixing frame 8, connecting frame 9, impeller body 10, filter assembly 11, positioning rod 12, filter ring 13, filter screen 14, positioning component 15, mounting groove 16, and water-blocking part 17, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A pipeline pump, comprising a pump body (1), wherein a pump cover (2) is provided at the upper end of the pump body (1), and a drive motor (3) is provided on the pump cover (2), wherein the motor shaft of the drive motor (3) extends into the pump body (1) and is connected to a multi-stage impeller assembly (4), characterized in that, The water pump body (1) is provided with an inlet channel (5) for water intake and an outlet channel (6) for water discharge. The water pump body (1) has a pump chamber inside. A fixing part (7) is provided between the pump chamber and the inlet channel (5). A water passage hole for water passage is provided on the fixing part (7). The multi-stage impeller assembly (4) consists of a fixing frame (8), several connecting frames (9) and several impeller bodies (10). Several connecting frames (9) are fixedly installed on the fixing frame (8). The impeller body (10) is installed between two adjacent connecting frames (9) and sleeved on the motor shaft of the drive motor (3). One end of the fixing frame (8) extends into the water passage hole of the fixing part (7), and a filter assembly (11) for filtration is fixedly installed at the front end of the fixing frame (8).

2. A pipeline pump according to claim 1, characterized in that, The front end of the fixing frame (8) is provided with a positioning rod (12). The filter assembly (11) includes a filter ring (13) and a filter screen (14). The filter ring (13) has an opening for the positioning rod (12) to pass through. The positioning rod (12) is provided with a positioning component for positioning the filter ring (13). The positioning component consists of a positioning element (15) and a return spring. The positioning rod (12) has an installation groove (16) for installing the positioning component. The positioning element (15) extends and retracts in the installation groove (16) by the action of the return spring to fix the filter ring (13).

3. A pipeline pump according to claim 1, characterized in that, The water inlet channel (5) and the water outlet channel (6) are on the same horizontal line, and a water-blocking part (17) is provided between the water inlet channel (5) and the water outlet channel.

4. A pipeline pump according to claim 1, characterized in that, The pump cover (2) is fixedly installed on the pump body (1) by fixing bolts.

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